There is of course the option that the "math with dollar signs" is wrong. The "math" is often based on old-world ideas of how to make money, which is basically "screw the user" is no longer valid in the internet age when a new behemoth can arise in months. The supply chains of the past are not the same as the always on internet with is extreme fluidity.

Maybe Ycomb has done some math, possibly a litte more up to date, and the people, culture and cred this site gives them is worth more than selling it?

Your main point remains valid of course, but we don't all suffer evenly - the internet is still a great place for many and a new home will be found or at least the next generation will find one.